Python program to find the area of a circle

Description: Write a Python program to calculate the area of a circle when the radius is 5.

Rules and hints:

• Formula: area = pi x radius x radius.
• Use math.pi for the value of pi.
• Round the answer to 2 decimal places with round().

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Python program for the area of a circle

import math

radius = 5
area = math.pi * radius ** 2

print("Area of the circle:", round(area, 2))

Output:

How it works

• radius ** 2 means radius to the power 2.
• math.pi is 3.141592653589793, so the exact area is 78.53981633974483.
• round(area, 2) keeps two digits after the decimal point.

See also Python Modules to learn about import.

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